Recent content by Dieinhell100
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Analyzing a Circuit with Phasors: Determining Inductance and Resistance
HA YES I DID IT. HAHAHAHAHA :smile: I assumed E was the combined voltage sources and got -37.19 + 8i as the complex form R + jwL = I/E R +10iL = 96.2 + 66.38i I had two variables and one equation, but I saw that there was real and nonreal numbers. So.. i terms -> 10iL = 66.38i L = 6.638...- Dieinhell100
- Post #8
- Forum: Introductory Physics Homework Help
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Analyzing a Circuit with Phasors: Determining Inductance and Resistance
I'm not sure what "E" is meant to be, but I can meet you halfway I think :biggrin: I = E /(R + jwL) .3255cos(10t+133.3°) = E / [R + j(10)(L)] -.223 + .237j = E / (R + 10jL) If I were to take a guess at what 'E' is, it's the combination of the voltage sources, correct? E = -7∠208° + 33∠-20° ?- Dieinhell100
- Post #7
- Forum: Introductory Physics Homework Help
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Analyzing a Circuit with Phasors: Determining Inductance and Resistance
Hmm.. Okay this took me a hell of a long time to calculate between those two equations. Was I supposed to use the equation in my first post and the equation found doing the KVL across L,R, and the two voltages to find R and L? If so, I got these monstrous values (10^16) that have complex...- Dieinhell100
- Post #5
- Forum: Introductory Physics Homework Help
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Analyzing a Circuit with Phasors: Determining Inductance and Resistance
Are you telling me that the capacitor and 22Ω resistor might as well be non existent when solving for the voltage across R and L? If so.. Does that mean I can do KVL while taking only R, L, and the 2 voltage sources into consideration? Giving me my 2nd equation?- Dieinhell100
- Post #3
- Forum: Introductory Physics Homework Help
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Analyzing a Circuit with Phasors: Determining Inductance and Resistance
Homework Statement When the circuit shown in the figure is at steady state, the mesh current is i(t) = 0.3255 cos(10t + 133.3°) A Determine the values of L and R. Zc is the impedance of the Capacitor ZL is the impedance of the Inductor I1 is the current in the top loop I2 is the current in...- Dieinhell100
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- Circuit Phasors
- Replies: 8
- Forum: Introductory Physics Homework Help
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Solving Equivalent Circuit for Thevenin Resistance & Current
KCL on the top node: 0 = (Leaving currents) - (Entering Currents) 0 = (Current across Req) + (Current Source) - (Current through voltage source) Current through voltage source = Isc 0= 1.237A + 9A - Isc Isc = 10.237 A The website won't tell me if this is correct (I used all my...- Dieinhell100
- Post #7
- Forum: Introductory Physics Homework Help
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Solving Equivalent Circuit for Thevenin Resistance & Current
Ahh. Thank you for taking the time to draw that out. Sorry, I'm getting a little confused from the different terminology. It sounds like you're asking what the voltage across the short circuit is. I'm not sure I know how to answer that. I'll take guesses though. I'm supposing that the...- Dieinhell100
- Post #5
- Forum: Introductory Physics Homework Help
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Why Use bh/2 for the Area of a Non-Right Triangle?
What he said. A right triangle is basically like half of a square, cut down in a diagonal. The area of a square is b*h (or side^2). So a right triangle's area should be bh/2. In the case of non-right triangles, this still holds true. Cut a parallelogram diagonally and you get two triangles...- Dieinhell100
- Post #3
- Forum: Introductory Physics Homework Help
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Solving Equivalent Circuit for Thevenin Resistance & Current
Does it short out the 65 Ω resistor? If it does, I had no idea, because I thought for it to short out a parallel resistor, the short circuit has to be parallel ONLY to that resistor. As for the potential across Req.. I guess I can use voltage division? Veq= [8.889Ω/(8.889Ω+65Ω)]11v, which...- Dieinhell100
- Post #3
- Forum: Introductory Physics Homework Help
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Solving Equivalent Circuit for Thevenin Resistance & Current
Homework Statement For t<0, the circuit shown below with the voltage source at 11 volts and three resistors combined into an equivalent, Req. We need to find the Thevenin equivalent circuit for the part of the circuit connected to the inductor. First find Req, by combining series and...- Dieinhell100
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- Circuit Equivalent
- Replies: 7
- Forum: Introductory Physics Homework Help
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Electrostatics: Using a conducting string suspension.
Homework Statement This is a lab question. Basically what the lab entails is we have two spheres. One is suspended from a string and another is attached to a non-conducting rod. We inductively charge the sphere attached to the rod. Then we bring it close to the other sphere that is being...- Dieinhell100
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- Conducting Electrostatics String Suspension
- Replies: 1
- Forum: Introductory Physics Homework Help
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Statics. Equilibrium With Springs and Tension Question.
I don't understand..? What other side of the triangle? And if it helps, the solution the book gives me is d=1.52m- Dieinhell100
- Post #3
- Forum: Introductory Physics Homework Help
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Statics. Equilibrium With Springs and Tension Question.
Homework Statement The springs BA and BC each have a stiffness of 500N/m and an unstretched length of 3m. Determine the displacement d of the cord from the wall when a force F = 175N is applied to the cord. Homework Equations F=ks ƩFx=0 ƩFy=0 The Attempt at a Solution This is as...- Dieinhell100
- Thread
- Equilibrium Springs Statics Tension
- Replies: 9
- Forum: Introductory Physics Homework Help